[PATCH] Delete server-side deleteThis()

This patch finishes the conversion of ServerStateData into AsyncJob by
properly implementing the doneAll() method and by removing calls to
deleteThis() or replacing with mustStop() calls as appropriate.

Also the Adaptation::AccessCheck modified to schedule an AsyncJobCall
when access check finishes.

ServerStateData and ClientHttpRequest classes modified to work with the
new Adaptation::AccessCheck.

This is a Measurement Factory project